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Cisco 300-445 Exam Syllabus Topics:

SectionObjectives
Assurance Platforms and Tools- Cisco assurance platforms
  • 1. Cisco DNA Center assurance
    • 2. Cisco ThousandEyes integration
      Automation and Data Interpretation- Data-driven assurance workflows
      • 1. API-based monitoring integration
        • 2. Event correlation and alerting
          Enterprise Network Assurance Architecture- Assurance concepts and methodologies
          • 1. Network assurance lifecycle
            • 2. Telemetry and analytics fundamentals
              Troubleshooting and Analysis- Performance and fault analysis
              • 1. Root cause analysis techniques
                • 2. Network performance degradation detection
                  Monitoring and Telemetry Technologies- Data collection mechanisms
                  • 1. NetFlow and IP SLA
                    • 2. Streaming telemetry
                      • 3. SNMP and syslog operations

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                        Cisco Designing and Implementing Enterprise Network Assurance Sample Questions (Q126-Q131):

                        NEW QUESTION # 126
                        Which alert rule configuration is commonly used to monitor TCP protocol behavior?

                        Answer: A

                        Explanation:
                        Connection timeouts are commonly used in alert rule configurations to monitor TCP protocol behavior and detect potential network issues such as connection failures or delays.


                        NEW QUESTION # 127
                        When diagnosing network issues such as packet loss, which collected data is typically analyzed?

                        Answer: B

                        Explanation:
                        When diagnosing network issues such as packet loss, performance metrics collected from network devices, such as routers, switches, and firewalls, are typically analyzed. These metrics include round-trip time (RTT), jitter, and packet loss rates to identify abnormalities and troubleshoot network performance issues.


                        NEW QUESTION # 128
                        What is a primary advantage of passive monitoring over active monitoring?

                        Answer: C

                        Explanation:
                        In the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) architecture, a critical design consideration is the impact of the monitoring solution on the production environment. The primary advantage of passive monitoring (Option B) is its non-intrusive nature; it provides insights into network performance and traffic composition without injecting additional
                        "synthetic" overhead into the data plane.
                        Passive techniques--such as Cisco Meraki Insight (MI), NetFlow, and SNMP--rely on the telemetry generated by existing user traffic or the device's own control plane. For example, Meraki Insight analyzes HTTP/S flows as they naturally pass through a Meraki MX appliance to derive application performance scores, rather than sending separate probes. This ensures that the monitoring tool itself does not consume bandwidth or contribute to network congestion, which is particularly vital in bandwidth-constrained branch environments or on high-utilization links.


                        NEW QUESTION # 129
                        A network monitoring engineer is tasked with creating a widget that displays the average packet loss from an agent installed as a Linux package. What is the data source and measure that should be selected?

                        Answer: B

                        Explanation:
                        InDesigning and Implementing Enterprise Network Assurance (300-445 ENNA), dashboard widgets must be mapped to the correct telemetry data source and statistical measure. When an agent is installed as aLinux packageon an organization's infrastructure, it is classified as anEnterprise Agent.
                        The correct configuration for this widget isCloud & Enterprise Agents and Mean(Option B).
                        * Data Source:Since the Linux-based agent is an Enterprise Agent, it shares the same data source category as Cloud Agents in the ThousandEyes dashboard configuration menu.
                        * Measure:To display the "average" packet loss as requested, theMean(the arithmetic average) is the appropriate statistical measure.
                        Other options are unsuitable:
                        * Option A:Endpoint Agentsare those installed on Windows/macOS user devices, not typically a standard Linux server package used for infrastructure monitoring.Medianwould show the middle value, not the average.
                        * Option C:Routingrefers to BGP data, which does not report packet loss in the same way as synthetic network tests.
                        * Option D:Devicesrefers to hardware monitored via SNMP, and annth Percentileis a specific statistical cutoff (like 95th percentile) rather than a simple average.


                        NEW QUESTION # 130
                        You're responsible for monitoring the performance of a company e-commerce website. You're considering using ThousandEyes Synthetic Web Tests. Which of the following functionalities of ThousandEyes Synthetic Web Tests would be MOST beneficial for monitoring the e-commerce checkout process?

                        Answer: B

                        Explanation:
                        According to the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) framework, application health is not just about reachability, but about the functionality of business-critical paths. For an e-commerce checkout process, which involves multiple interactive steps such as "Add to Cart," "Enter Shipping Info," and "Finalize Payment," Transaction monitoring (Option B) is the most beneficial functionality.


                        NEW QUESTION # 131
                        ......

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